We're going to solve 7447 multiplied by 3420
7447 × 3420 = 3420 × (7447)
+ 3420 × 7 yielding 23940
+ 3420 × 40 what gives us 136800
+ 3420 × 400 which equals 1368000
+ 3420 × 7000 giving us 23940000

= 25468740
